Key hanger



FIG. 1 is a front isometric view of a key hanger showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a key hanger, as shown. 